chempy_model03.py

from pymol import cmd
from random import random
import time
# this shows how you can efficiently update the coordinates# of an existing model for viewing as a PyMOL trajectory (from RAM)# first we need a model
cmd.load("$PYMOL_PATH/test/dat/pept.pdb","demo")
# let's dress it up a little bit
cmd.show("sticks","demo")
cmd.show("spheres","resi 10")
cmd.color("yellow","resi 5 and element c")
# now loop, updating the coordinates and appending the model# onto 99 subsequent frames...
m = cmd.get_model()
for a in range(1,100):
for a in m.atom:
a.coord[0]+=(random()-0.5)*0.1
a.coord[1]+=(random()-0.5)*0.1
a.coord[2]+=(random()-0.5)*0.1
cmd.load_model(m,"demo") # NOTE: no state number provided -> appends# now define the movie with short pauses at beginning and and
cmd.mset("1 x15 1 -100 100 x15")
# now play the movie...
cmd.mplay()
# by default, PyMOL plays ~30 fps.# "set movie_delay=0" to see maximum speed...